I gave up on TurtleTax years ago when their software refused to take information entry for a Master Limited Partnership. This had not been a problem in prior years. They tried different experts for 2 hours and finally said, sorry we can’t do it. It was the only detail left to finishing a complicated return. So, I had to go elsewhere and start over. Now I have a CPA.
I have used HR Block software for 5 years with no issues.
Last year I paid underpayment of estimated tax based on what HRB software came up with and paid on time in April. 3 months later I get a check in mail from IRS saying I had overpaid the penalty.
Goes to show you nothing is fool-proof.